Oswald krakoviez



- what gaat om www tt. aai-3*" OSWALD- KRKOVIEZ,v OF CHICAGO, ILLINOIS.

Letters Patent No'. 87,17 8, dated February .23, 1869.

vEN'rILAToR.

The Schedule referred to in these Letters P atent and making part ofl the same.

To all whom it ma/y concern Be it known that `I, OsWALD KRAKOVIEZ, of the city of Ohicago, in the county of Cook, and State. of

Illinois, have invented a new and useful Room-Ventilator; and I do hereby declare that the following is a full and exact description thereof, reference being had venient and cheap ventilator for rooms, its nature consists in a box opened or closed by a pivoting gate, and

placed in the house-wall, near the ceiling, said box -so arranged as to prevent insects, rain, or any extraneous matter, from entering into or throughthe box.

To enable others skilled in the art to which my invention appertaius, to make and use said invention, I will proceed to describeits construction and operation..

. A is the box, made of wood or metal, and of any suitable shape, provided with flange B at the end, placed inside ofthe wall O, and with a similar ange on its'outside end if necessary or desirable, thetlanges being plain 0r ornamental.

D isa pivoting gate, placed inside of the box A, and near its inside-end, and provided with asuitable handle, d, or other convenient device,` for the purpose of opening or closing the gate.

E is a wire net covering the outside opening of the box A, to prevent inseets'and other extraneous matter from getting inside of the box, and through it into the room.

The ends a a ofthe box are parallel to each other, or nearly so, but out off slantingly to the direction of the box itself, in s ueh a manner-that when box A is placed into the wall C, andthe ends a, a' are placed flush with the faces of the wall, the box has'a slanting position from inside to the outside of the wall, in which position the water from -rain or snow, entering the box through wire net E, is easily conveyed out of the box.

The box is intended to bemade of any size, and be used for frame, brick, or'any other buildings, and is to be placed in the rooms near or close to theceiling. .It makes a-cheap, simple, and convenient room-Ventile. tor for ordinary houses and workshops, and-,can be p ut in the Walls at the time when buildings are constructed, or at any time afterward. n

Gate D maybe made shorter on one side, so as to leave, when closed, a small open space, to let out the gasescaping from gas-pipesor stoves.

Having thus described my invention,

What I claim as new, and desire to secure by. Letters Patent, is

The ventilator, consisting of the box-v A,having its v body inclined, as represented,vand provided with the 

